performance camparison between php4 and php5

zz from sourceLib

The hardware used was a 2 CPU server, where each CPU was a Intel Xeon 2.8Ghz processor.

The machine contained 2Gig of RAM(DDR2 PC3200 ECC REG 400). The hard drives on the machine were 2-40Gig SATA.

The server was running Red Hat Enterprise Linux version 3.2 with the kernel version 2.4.21-27 and the x86_64 architecture.

The version of Apache running on the machine was 1.3.33.

Each version of PHP was built with the following configuration settings:

With mysql
With ftp enabled
With pcntl (process control) enabled
With memory limit enabled
With cgi disabled

The default php.ini was used as well.

Test	PHP4	PHP5	Net
test_arithmetic	0.065	0.063	3.54%
test_array_operators	0.059	0.058	1.85%
test_bitwise	0.029	0.025	13.19%
test_casting	0.186	0.176	5.63%
test_chr_fixed	0.342	0.336	1.87%
test_chr_hardcoded	0.191	0.181	4.83%
test_chr_var	0.364	0.358	1.68%
test_comment_loop	0.079	0.070	11.50%
test_compare	0.054	0.049	9.98%
test_compare_false	0.008	0.008	0.00%
test_compare_invert	0.005	0.004	8.89%
test_compare_strict	0.014	0.012	18.88%
test_compare_unstrict	0.017	0.014	18.13%
test_constants	0.039	0.039	-2.34%
test_crc32	0.016	0.017	-4.43%
test_do_while	0.390	0.353	9.54%
test_do_while_break	0.056	0.048	14.70%
test_empty	0.004	0.004	13.95%
test_empty_loop	0.078	0.070	10.65%
test_ereg	1.000	1.017	-1.63%
test_foreach	1.240	1.120	9.68%
test_get_class	0.017	0.017	1.15%
test_global_scalar_assign	0.085	0.071	16.17%
test_global_string_assign	0.140	0.129	7.85%
test_if_constant	0.010	0.010	0.00%
test_increment	0.043	0.041	5.07%
test_is_array	0.009	0.008	5.88%
test_is_object	0.008	0.008	2.38%
test_is_type	0.029	0.027	8.16%
test_isset	0.005	0.004	18.37%
test_line	0.009	0.008	2.35%
test_local_array_assign	0.187	0.176	5.73%
test_local_boolean_assign	0.074	0.073	0.41%
test_local_float_assign	0.048	0.044	8.88%
test_local_hash_assign	0.040	0.038	5.28%
test_local_integer_assign	0.048	0.044	7.92%
test_local_object_assign	0.028	0.023	20.49%
test_local_scalar_assign	0.086	0.074	13.08%
test_local_string_assign	0.123	0.114	7.25%
test_md5	0.078	0.077	1.79%
test_microtime	0.075	0.087	-15.65%
test_mt_rand	0.011	0.011	0.00%
test_ord	1.447	1.416	2.17%
test_ordered_functions	0.629	0.602	4.18%
test_ordered_functions_references	0.603	0.576	4.56%
test_preg_match	0.050	0.065	-29.37%
test_rand	0.011	0.011	-0.94%
test_references	0.017	0.015	12.21%
test_sha1	0.094	0.099	-5.98%
test_string_append	0.091	0.083	8.88%
test_strlen	0.009	0.009	-2.22%
test_switch	0.190	0.191	-0.37%
test_time	0.023	0.023	-1.31%
test_unordered_functions	0.715	0.663	7.35%
test_variable_variables	0.038	0.034	10.90%
test_while	0.423	0.358	15.49%